Top Used Cars Under $20,000

Buying a car doesn't have to break the bank. While new car prices keep climbing, the used market still offers incredible value if you know where to look. Finding the best second hand cars Australia has to offer means balancing reliability, safety, and running costs.

With a $20,000 budget, you can snag a vehicle that is modern, safe, and packed with tech. Whether you need a zippy hatch for city commutes or a sturdy SUV for family weekends, there are plenty of cars under 20k that fit the bill.

Why Buy a Used Car Under $20,000?

A $20,000 budget is a sweet spot. It moves you away from high-kilometre "beaters" and into the territory of well-maintained vehicles with modern safety features like autonomous emergency braking (AEB) and smartphone mirroring.

In Australia, this price bracket is dominated by reliable Japanese and Korean brands. You are often looking at cars that are 5 to 8 years old, which is usually when the first owner moves on, but the car still has plenty of life left.

Best Used Cars Under $20,000 Australia

Here are the top picks for best used cars under $20,000 Australia, categorised by how you plan to use them.

Toyota Corolla (2014–2018)

The Toyota Corolla is the default choice for a reason. It is famous for mechanical simplicity and being easy to own.

• Why it's a top pick: Parts are everywhere, and every mechanic in Australia knows how to fix them.
• What to look for: At this price, you can find a tidy Ascent Sport or even a high-spec Levin ZR.
• Fuel Economy: Roughly 6.1L–6.7L/100km.

Mazda3 (2014–2017)

If you want something that feels a bit more premium and fun to drive, the Mazda3 is hard to beat.

• Why it's a top pick: The interior quality is often a step above rivals, and the "SkyActiv" engines are punchy and efficient.
• What to look for: Aim for the Maxx or Touring trims for better safety tech and satellite navigation.
• Fuel Economy: Around 5.8L/100km for the 2.0L engine.

  Hyundai i30 (2016–2020)

The Hyundai i30 has become a staple on Aussie roads. It’s practical, looks sharp, and often comes with the balance of a factory warranty if you find a newer model.

• Why it's a top pick: It was tuned specifically for Australian roads, so the suspension handles our potholes and regional tracks better than most.
• What to look for: Look for the PD series (post-2017) for a much more modern interior.
• Fuel Economy: Expect about 7.4L/100km for the 2.0L petrol engine.

Mazda CX-5 (2012–2015)

Looking for an SUV? The CX-5 is one of the best car under 20k Australia options for families who need extra boot space.

• Why it's a top pick: It drives like a smaller car but offers the high seating position Aussies love.
• What to look for: Check for a full service history, as these engines prefer regular oil changes to stay healthy.
• Fuel Economy: Approx 6.4L/100km (Diesel) or 7.9L/100km (Petrol).

Kia Cerato (2017–2021)

The Cerato is the value king. Because Kia offered a seven-year warranty, many used examples under $20k are still covered.

• Why it's a top pick: It’s basically a Hyundai i30 underneath but often sells for a slightly lower price on the second-hand market.
• What to look for: The Sport+ trim adds leather-accented seats and advanced safety gear

Before buying best used cars under $20,000 

When you're looking at best used cars under $20,000 Australia, don't just look at the shiny paint. Follow these steps to ensure you aren't buying a lemon.

Check the Service History

A car is only as good as its maintenance. If the logbook is empty or the seller says they "did it themselves" without receipts, walk away. Regular oil changes are the secret to a car lasting 300,000km.

Inspect the Tyres and Brakes

New tyres can cost $600–$800 for a set. If the tread is low, use that to negotiate the price down. Check the brake discs for any heavy grooves or rust.

PPSR Report

Always run a PPSR (Personal Property Securities Register) check. It costs a few dollars and tells you if the car has been written off, stolen, or has money owing on it. Never buy a used car without one.

The "Cold Start" Test

If possible, arrive early to see the car start from cold. Smoke from the exhaust or rattles in the first 30 seconds can signal expensive engine issues.

Small Cars vs. SUVs: Which is Better Under 20k?

While everyone seems to want an SUV, a hatchback or sedan is often a smarter buy when looking for cars under 20k.

For the same $20,000, you can usually buy a 4-year-old hatchback with 50,000km, or a 9-year-old SUV with 150,000km. If you don't actually need the ground clearance for camping or dirt roads, the hatchback will be cheaper to run, easier to park, and cheaper to insure.

Running Costs to Budget For

Buying the car is only the start. To keep your best second hand cars Australia experience positive, budget for:

• Insurance: Comprehensive insurance varies, but expect $800–$1,500 depending on your age and location.
• Registration: Usually around $800–$900 per year in most Aussie states.
• Servicing: Budget $300–$500 per year for a basic service.

Where to Find the Best Deals

• Private Sales: Sites like Facebook Marketplace or Gumtree offer the lowest prices but zero protection.
• Dealerships: You’ll pay a premium, but you get a statutory warranty (usually 3 months or 5,000km) if the car is under a certain age and mileage.
• Auctions: Great for bargains, but you generally can't test drive the car before bidding.

FAQs

What is the most reliable used car under $20,000 in Australia?

The Toyota Corolla and Mazda3 are widely considered the most reliable. They have simple engines and great build quality that holds up over time.

Is 100,000km too much for a used car?

Not anymore. Most modern cars from reputable brands will easily do 200,000km to 300,000km if serviced correctly. A car with 100,000km and a perfect service history is better than a car with 60,000km and no service records.

Do I get a warranty on a used car?

If you buy from a licensed motor dealer in Australia, you typically get a statutory warranty on cars less than 10 years old with under 160,000km. Private sales have no warranty—it’s "buyer beware."

Should I buy a used European car under 20k?

Be careful. A $15,000 BMW or Audi might look like a bargain, but parts and specialist labour costs are much higher than Japanese or Korean brands. If you're on a budget, stick to Toyota, Mazda, Hyundai, or Kia.

What safety features should I look for?

Try to find a car with a 5-star ANCAP rating. Look for at least six airbags, Electronic Stability Control (ESC), and if possible, Autonomous Emergency Braking (AEB).

Start Your Search Today

Finding the best second hand cars Australia takes a bit of patience. Don't rush into the first car you see. Test drive a few different models to see which one feels right. With $20,000 in your pocket, you are in a strong position to find a reliable, safe, and comfortable ride.

Ready to find your next car? Start browsing local listings and keep this guide handy to make sure you get the best value for your money.